Fitting for air lines and the like



L. W. GREVE.

FITTING Foa AIR LINESLA'ND THE LIKE.

APPLICATION FILED AUG. l. 1918.

1,425,642. Patented Aug. 15, 1922.

- l Eggl.

- To; all whom t may .cof/mera.'-

Umre Sreif'eSi"fPermf` Louisweanvn, or ctnvnnannffonro, AssiGNoafTe'jrnn onnvnnnnnrivnumamre y Toon CQMPANY, on oLnvELnNio, onrotaicoaronamron or# o HIo-f` j FHTING FOR AIP; LINEsiAivn THEM-KE. y

` Be it known that I, LouisNV. a

vcitizen of the nited States, residing .fat

Cleveland, in the countyl of Cuyahogaand State of hio,haveinvented a certainnew l and useful Improvement in Fittings for Air.v Lines andthe like,of` which theiollowingI is ya full, clear, and 4exact description.

his invention relates to a fitting for air lines andthe like, and hasor'its object Vto provide a iitting, prefserably inthe formof a Y', by which connect-:on may be made 'from fa mainsupply lineyto two or a plurality of I.. lirmly seated by thepressurel ofthel air'or.

branch or delivery lines, together. with a valve at the axis. of the ttingadaptedftor control the supply of fluid toalll branchv pipes, and so constructedthatit will ,be

otheriiuid beingtrans'mitted, and will `not become loose and permit leakage. Aiurther object is to provide fitting having the characteristics above mentioned, and which is neat in! appearance; seiwiceablegand not of y v reverse;A type be at the outletl ends,'such"afs1 l excessive weight.l

VThe inventionmay bebrieflysuminarized as consisting' in certain novel details oconr structionand combination and arrangement of parts as willbe` described in the specifhl cation and set forth in the appended claim.

Inthe accompanying sheet of drawings,

F ig. 1 is a side view of a fitting involving my invention, partsbeing in section; `Fig. 2 is a top planr viewfof the same; Fig. 3 is a bottom view of the same; Fig. 4 isa section substantially along the line 1-4 of Fig.

3 looking in the direction indicated by the u arrows; and Figz is a view similar to Fig.v 1 on a reduced scale, showing a slight modi- `cludes a body 10, in this instance in the form of a Y having an inlet end 11, with i two branches having outlet ends 12 and 13.

The inlet end 11 is designed to beaconnected to a main supply pipe or to a main air line, assuming` thatthe fitting is for air lines for which 4the device was designed and is particularly adapted, vand the outlet ends 12 and 13 will be connected to branch pipes or hose extending to tools such as pneumatic riveters or chippers, or other tools or 4devices to which lair is to be supplied under pressure. A

In the construction shown in Fig.' 1, the inlet end 11 is in the form of an internally v i Specification of Letters Patent.

application ined August` i, 1 e18. serial Ng'. 247,708. ill ,y

' threaded fiange'orboss which receives' a nipy p ple 14 on 'the end of which .is formed a malecoupling member ,-15 with: a-spring actuated.4 locking sleeve.` l16.v o'ffwhat vis commonly known as a. Bowes. coupling, substantially as shown in `the ULS. Patent` tol Bowes, No.,v

that `.the ends be provided or! formedwith.

`of theBowestype hereinillustrated. l` i 1t; might `be `mentioned atvthis, point that f quick detachable coupling `members such yas itis not 'essentiali'thatthe coupling'.meme1A -ber provided atthelinletendfof the yfitting,

be connected thereto by a separateor sepa* j rable nipple. 14, as the coupling .member .may

75,-.' be formed as an integral parteithegYfiitting .l

andy while I 'preferthataz coupling*.member` 1 otone typey be at. they inlet end, and'of the; i

vthe inlet end, and male coupling'members at the ends of the outlet branches,"as shown in F ig. 5, wherein the body ofl the fittinghere designated 10a is p rovided 'with an inv v let end 11a, formed with a female coupling and 13? are formed with male'coupling members. -v i `At the aXisothe Y fitting, directly in line' with ythe inlet end, v.there is formed a tapered valve seat'l? with-its largeend to-", ward the inlet end of the fitting, the cham;k

-membe r, andthe ends offthe branches12a f t ber in which thisseat is formed having two ports or passageways l18 and 19 extendingy laterally outward through thebranches toward the outlet ends'12 and. 13,-these passageways being in this case diametrically opposite each other.

Seated on this tapered valve seat is a tapered orconical valve 20 which is hollow,

and has extending throughits tapered-wall,` two diametrically opposite ports 21 and 22.

rather narrow vor elongated where they eX` tend from the wall forming the tapered valve seat, and the ports 21`and 22 of the tapered shell forming the valve are like- Theports 18 and 19 inthe branches are wise narrow and elongated, and are pref.-

of the valve seat to minimize possibility of,

y leakage.

The` small Iend` 23 of the tapered valve member is extendedthrough thefitting between the ends of the branches, and it is Y squaredaorotherwise shaped to receive a lever, wrench, or other member 24 by which the-valve may be turned from off positiony to, onl position, and vice versa, there being `sufHcieI-it space between u the ends of ,thev

branches topermit the valve tol be turned or rotated yfrom-oneposition-to the other.

l InEigsl and 4 the valve is fully closed, the ports in the valve being on aline atright langlesto the ports 18, and 19, or midway between the two so that the valve at the Sametime shuts off the supply of air from bothfbranch pipes designed to be comuected to theroutlet ends of the fitting, but when the valve isfturned 90O from'thc position shownin-theselfigures, air or other fluid will be Supplied from' the inlet pipe which willv be connectedto the inlet end ofthe fitting, to lbeth-branch pipes.

twilll =beobserved that the pressure of the air or` motive fluid vis on the large end" ofthe' valve, andtends at alltimes to seatthe valve'so that as wear occurs, the valve will seat asfirmly as when originally put into 'use ,andas' a result there is little possibility ofy leakage tali-ing place since the pressure offthe air or fluid `holds th'efcosacting or contacting faces of thevalve and valve seat in engagement, andthe greater the. pres: sure, of they fluid transmitted', the more tightly the parts fit together. v

In conclusion ity might be mentioned that avcombination of vthe Y fitting with va valve controlling` the passage of fluid fromthegin let to the outlet ends is accomplish'ed'with` outrequiring aiitting any larger or bullrier than would be required if `the valve were not present, so that the features of 'com pactness as wellas durability are realized to.- a very decided degree.

While I have shown two preferred forms or'ways of carrying out thefinvention, I

sev

do notwish to be confined to the precise def outlet assaOewa s which' are elongated adjacent the central part of the fitting and terminate in elongated ports inv thevalVe seat, anda tapered: valve engaging said seat and vhaving elongated ports adapted to register with said elongated ports of they seat.

y Inv testimony whereof, I hereunto my signature.v

Louisw. GREVE. 

